1st Edition

A Functorial Model Theory Newer Applications to Algebraic Topology, Descriptive Sets, and Computing Categories Topos

By Cyrus F. Nourani Copyright 2014
    302 Pages 25 B/W Illustrations
    by Apple Academic Press

    302 Pages 25 B/W Illustrations
    by Apple Academic Press

    This book is an introduction to a functorial model theory based on infinitary language categories. The author introduces the properties and foundation of these categories before developing a model theory for functors starting with a countable fragment of an infinitary language. He also presents a new technique for generating generic models with categories by inventing infinite language categories and functorial model theory. In addition, the book covers string models, limit models, and functorial models.

    Introduction

    Categorical Preliminaries
    Categories and Functors
    Morphisms
    Functors
    Categorical Products
    Natural Transformations
    Products on Models
    Preservation of Limits
    Model Theory and Topoi
    More on Universal Constructions
    Chapter Exercises

    Infinite Language Categories
    Basics
    Limits and Infinitary Languages
    Generic Functors and Language String Models
    Functorial Morphic Ordered Structure Models
    Chapter Exercises
    Functorial Morphic Ordered Structure Models

    Functorial Fragment Model Theory
    Introduction
    Generic Functors and Language String Models
    Functorial Models As ¿-Chains
    Models Glimpses From Functors
    Structure Products
    Higher Stratified Consistency and Completeness
    Fragment Positive Omitting Type Algebras
    Omitting Types and Realizability
    Positive Categories and Consistency Models
    More on Fragment Consistency
    Chapter Exercises

    Algebraic Theories, Categories, and Models
    Ultraproducts on Algebras
    Ultraproducts and Ultrafilters
    Ultraproduct Applications to Horn Categories
    Algebraic Theories and Topos Models
    Free Theories and Factor Theories
    T-Algebras and Adjunctions
    Theory Morphisms, Products and Co-products
    Algebras and the Category of Algebraic Theories
    Initial Algebraic Theories and Computable Trees
    Chapter Exercises

    Generic Functorial Models and Topos
    Elementary Topoi
    Generic Functorial Models
    Generic Functors
    Initial D<A,G> Models
    Positive Forcing Models
    Functors Computing Hasse Diagram Models
    Fragment Consistent Models
    Homotopy theory of topos
    Filtered colimits and comma categories
    More on Yoneda Lemma
    Chapter Exercises

    Models, Sheaves, and Topos
    PreSheaves
    Duality, Fragment Models, and Topology
    Duality
    Lifts on Topos Models on Cardinalities
    Chapter Exercises

    Functors on Fields
    Introduction
    Basic Models
    Fields
    Prime Models
    Omitting Types on Fields
    Filters and Fields
    Filters and Products
    Chapter Exercises

    Filters and Ultraproducts on Projective Sets
    General Definitions
    Generic Functors and Language String Models
    Functorial Fragment Consistency
    Filters
    Structure Products
    Completing Theories and Fragments
    Prime Models and Model Completion
    Uniform and countably incomplete ultrafilters
    Functorial Projetive Set Models and Saturation
    Ultraproducts and Ultrafliters
    Chapter Exercises

    A Glimpse on m Algebraic Set Theory
    Preliminaries
    Ultraproducts and Ultrafilters on Sets
    Ultrafilters over N
    Saturation and Preservations
    Functorial Models and Descriptive Sets
    Filters, Fragment Constructible Models, and Sets
    Index

    Biography

    Dr. Cyrus F. Nourani is a consultant in computing R&D and a research professor at Simon Fraser University. He has many years of experience in the design and implementation of computing systems and has authored/coauthored several books and over 350 publications in mathematics and computer science. He has also held faculty positions at numerous institutions, including the University of Michigan, University of Pennsylvania, University of Auckland, UCLA, and MIT. His research interests include computer science, artificial intelligence, mathematics, virtual haptic computation, information technology, and management.